23528825 has 6 divisors (see below), whose sum is σ = 29175774. Its totient is φ = 18823040.

The previous prime is 23528819. The next prime is 23528851. The reversal of 23528825 is 52882532.

It can be written as a sum of positive squares in 3 ways, for example, as 2036329 + 21492496 = 1427^2 + 4636^2 .

It is not a de Polignac number, because 23528825 - 2⁸ = 23528569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 470552 + ... + 470601.

It is an arithmetic number, because the mean of its divisors is an integer number (4862629).

Almost surely, 2^23528825 is an apocalyptic number.

23528825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23528825 is a deficient number, since it is larger than the sum of its proper divisors (5646949).

23528825 is an equidigital number, since it uses as much as digits as its factorization.

23528825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941163 (or 941158 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 23528825 is about 4850.6520180281. The cubic root of 23528825 is about 286.5497803320.

The spelling of 23528825 in words is "twenty-three million, five hundred twenty-eight thousand, eight hundred twenty-five".